<template>
  <v-navigation-drawer
    id="app-drawer"
    :mini-variant.sync="mini"
    fixed
    :dark="$vuetify.dark"
    app
    v-model="drawer"
    width="260"
  >
    <v-toolbar color="primary darken-1" dark>
      <img :src="computeLogo" height="36" alt="LABLOG ADMIN">
      <v-toolbar-title class="ml-0 pl-3">
        <span class="hidden-sm-and-down">LABLOG ADMIN</span>
      </v-toolbar-title>
    </v-toolbar>
    <vue-perfect-scrollbar class="drawer-menu--scroll" :settings="scrollSettings">
      <v-list dense expand>
        <template v-for="(menu, menuIndex) in menus">
          <!--group with subitems-->
          <v-list-group
            v-if="menu.children"
            :key="menuIndex"
            :group="menu.group"
            :prepend-icon="menu.icon"
            no-action="no-action"
          >
            <v-list-tile slot="activator" ripple="ripple">
              <v-list-tile-content>
                <v-list-tile-title>{{ menu.title }}</v-list-tile-title>
              </v-list-tile-content>
            </v-list-tile>
            <template v-for="(subMenu, subMenuIndex) in menu.children">
              <!--sub group-->
              <v-list-group
                v-if="subMenu.children"
                :key="subMenuIndex"
                :group="subMenu.group"
                sub-group="sub-group"
              >
                <v-list-tile slot="activator" ripple="ripple">
                  <v-list-tile-content>
                    <v-list-tile-title>{{ subMenu.title }}</v-list-tile-title>
                  </v-list-tile-content>
                </v-list-tile>
                <v-list-tile
                  v-for="(grandMenu, grandMenuIndex) in subMenu.children"
                  :key="grandMenuIndex"
                  :to="routerTo(grandMenu)"
                  :href="grandMenu.href"
                  ripple="ripple"
                  exact="exact"
                >
                  <v-list-tile-content>
                    <v-list-tile-title>{{ grandMenu.title }}</v-list-tile-title>
                  </v-list-tile-content>
                </v-list-tile>
              </v-list-group>
              <!--child item-->
              <v-list-tile
                v-else
                :key="subMenuIndex"
                :to="routerTo(subMenu)"
                :href="subMenu.href"
                :target="subMenu.target"
                :disabled="subMenu.disabled"
                ripple="ripple"
                exact="exact"
              >
                <v-list-tile-content>
                  <v-list-tile-title>
                    <span>{{ subMenu.title }}</span>
                  </v-list-tile-title>
                </v-list-tile-content>
              </v-list-tile>
            </template>
          </v-list-group>
          <v-subheader v-else-if="menu.header" :key="menuIndex">{{ menu.header }}</v-subheader>
          <v-divider v-else-if="menu.divider" :key="menuIndex"></v-divider>
          <!--top-level link-->
          <v-list-tile
            v-else
            :to="routerTo(menu)"
            ripple="ripple"
            :target="menu.target"
            :href="menu.href"
            rel="noopener"
            :key="menu.name"
            exact="exact"
          >
            <v-list-tile-action v-if="menu.icon">
              <v-icon>{{ menu.icon }}</v-icon>
            </v-list-tile-action>
            <v-list-tile-content>
              <v-list-tile-title>{{ menu.title }}</v-list-tile-title>
            </v-list-tile-content>
          </v-list-tile>
        </template>
      </v-list>
    </vue-perfect-scrollbar>
  </v-navigation-drawer>
</template>
<script>
import VuePerfectScrollbar from 'vue-perfect-scrollbar'
import request from '@/utils/request'
import menus from '@/api/menus'
export default {
  name: 'app-drawer',
  components: {
    VuePerfectScrollbar
  },
  props: {
    expanded: {
      type: Boolean,
      default: true
    }
  },
  data: () => ({
    mini: false,
    drawer: true,
    menus: menus,
    scrollSettings: {
      maxScrollbarLength: 160
    }
  }),
  computed: {
    computeGroupActive() {
      return true
    },
    computeLogo() {
      return 'https://cdn.vuetifyjs.com/images/logos/v-alt.svg'
    },

    sideToolbarColor() {
      return this.$vuetify.options.extra.sideNav
    }
  },
  methods: {
    routerTo(item) {
      if (item.href) return
      if (item.to) {
        return {
          name: item.to
        }
      } else {
        return { name: 'dashboard' }
      }
    }
  },
  created() {
    window.getApp.$on('APP_DRAWER_TOGGLED', () => {
      this.drawer = !this.drawer
    })
  }
}
</script>


<style lang="stylus">
#appDrawer {
  overflow: hidden;

  .drawer-menu--scroll {
    height: calc(100vh - 48px);
    overflow: auto;
  }
}
</style>
